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Number of connections with D445

Created by: ELfan at: 2/13/2008 3:43 PM (7 Replies)

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2/13/2008 3:43 PM	Rate (0)
ELfan Advanced Member Joined: 2/13/2008 Last visit: 10/7/2022 Posts: 40 Rating: (12)	Does anyone know how many connections the D445 supports. I have tried to find this information in the manuals with no success. My project will have 6 HMI's and will also need a connection for programming.

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2/13/2008 4:06 PM	Rate (0)
ZZZ Regular Member Joined: 6/20/2006 Last visit: 3/21/2022 Posts: 14 Rating: (0)	Each SIMOTION platform can handle up to 16 ONLINE connections.The engineering system SCOUT can use up to 3 connections dependant on the state (being ONLINE, recording trace, etc.). Each HMI device uses 1 (only variable exchange) or 2 (alarms) connections.The more connections are used the more the communication performance can slow down dependant on the existing runtime load. I hope this helps, ZZZ

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2/13/2008 4:21 PM	Rate (0)
ELfan Advanced Member Joined: 2/13/2008 Last visit: 10/7/2022 Posts: 40 Rating: (12)	Thats is great news someone had said it was only 5 connections which didnt make alot of sense but I was very concerned. Is this documented anywhaere?

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2/13/2008 5:03 PM	Rate (0)
ZZZ Regular Member Joined: 6/20/2006 Last visit: 3/21/2022 Posts: 14 Rating: (0)	Hi Elfan, please see the attachment Chapter 2 of the SIMOTION catalog. It contains the "Overview of functions". Please have a look at page 7 (2/8) under "connection endpoints". Have fun, ZZZ Attachment SIMOTION Catalog PM10 Chapter 2.pdf (790 Downloads)

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2/13/2008 5:18 PM	Rate (0)
ELfan Advanced Member Joined: 2/13/2008 Last visit: 10/7/2022 Posts: 40 Rating: (12)	Thanks. I finally found it in my PM-10. It does say 5 HMI connections. Is this the default number and can be expanded or is the limit 5 HMI connections?

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2/13/2008 6:02 PM	Rate (0)
ZZZ Regular Member Joined: 6/20/2006 Last visit: 3/21/2022 Posts: 14 Rating: (0)	Basically SIMOTION does not care who is using the connections.The “5” in the catalog means “guaranteed” by Siemens under the perspective good case not worst case.That means, there is no fixed limit at 5 by the system.Again: communication performance can become a problem, because the SIMOTION multi tasking real time operating systems does not allow influencing the accuracy of motion control or real time programming by asyncronous communication. Have a nice day, ZZZ

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2/13/2008 6:14 PM	Rate (0)
ELfan Advanced Member Joined: 2/13/2008 Last visit: 10/7/2022 Posts: 40 Rating: (12)	Thanks ZZZ

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2/14/2008 12:58 PM	Rate (0)
ZZZ Regular Member Joined: 6/20/2006 Last visit: 3/21/2022 Posts: 14 Rating: (0)	Hi ELfan, Did you know that you can get the information about the number of left communication connections, if you are ONLINE with SIMOTION? Open the HW-Config, select the SIMOTION and press CTRL+D. Then you get the attached dialog. ZZZ Attachment Connections.JPG (671 Downloads)

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